It’s tempting to fall prey to the idea that it’s good to surround yourselves only with people who look like you, agree with your beliefs or your religion, or are in the same financial bracket as you, etc. That can feel good at first because it’s so easy. We like to see ourselves reflected in others, to have what we already think affirmed or find that we share interests or opinions with someone else. These are all natural ways of bonding. The trouble starts when we begin to exclude anyone who falls outside those cozy formulas.